.el-menu-item [class*=ys-icon-]  {
  margin-right: 5px;
  width: 24px;
  text-align: center;
  font-size: 18px;
  vertical-align: middle;
}
.el-submenu [class*=ys-icon-]  {
  vertical-align: middle;
  margin-right: 5px;
  width: 24px;
  text-align: center;
  font-size: 18px;
}
